<!DOCTYPE html>
<html lang='en'>

<head>
    <meta charset='UTF-8'>
    <meta http-equiv='X-UA-Compatible' content='IE=edge'>
    <meta name='viewport' content='width=device-width, initial-scale=1.0'>
    <title>vue</title>
    <script src='https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js'></script>
</head>

<body>
    <div id='app'>
        <navbar></navbar>
        {{hero}}
    </div>
</body>
<script>
    Vue.component('navbar', {
        template: `
        <div style="background-color: red; border:5px solid">
        <button @click="left">left</button>
        <button @click="right">right</button>
        <zhengzhou></zhengzhou>
         </div>       
        `,
        data() {
            return {
                hero: '凤女'
            }
        },
        methods: {
            left() {
                console.log('lete--');
            },
            right() {
                console.log('right--');
            }
        },
        components: {
            'zhengzhou': {
                template: `
                <div>--{{hero}}</div>
                `,
                data() {
                    return {
                        hero: '牛头'
                    }
                }
            }
        }
    })
    let vm = new Vue({
        el: '#app',
        data: {
            hero: '剑圣',
        },
        methods: {

        }
    });
</script>

</html>